Crossword Genius

One perhaps putting Whistleblower Diaries entry about? (6)

Ross

I believe the answer is:

golfer

I'm a little stuck... Click here to teach me more about this clue!

'one perhaps' is the definition.
I can't tell whether this definition defines the answer.

'whistleblower diaries entry about?' is the wordplay.
'whistleblower' becomes 'ref' (referee).
'diaries entry' becomes 'log' (I can't justify this - if you can you should believe this answer much more).
'about?' is a reversal indicator (I've seen 'about' mean this).
'ref'+'log'='reflog'
'reflog' in reverse letter order is 'GOLFER'.

'putting' is the link.

Can you help me to learn more?

(Other definitions for golfer that I've seen before include "McGinley or Harrington, say" , "Swinger on course" , "Driver, chipper and putter" , "Player with clubs and tees" , "Player on links" .)

I've seen this clue in The Telegraph.
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